3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ 'abc' => 0, 'foo-bcd' => 1, 'foo-def' => 1, 'foo-xyz' => 0, ]; $prefix = 'foo'; var_export( array_filter( $array, fn($key) => str_starts_with($key, $prefix), ARRAY_FILTER_USE_KEY ) );
Output for git.master, git.master_jit, rfc.property-hooks
array ( 'foo-bcd' => 1, 'foo-def' => 1, 'foo-xyz' => 0, )

This tab shows result from various feature-branches currently under review by the php developers. Contact me to have additional branches featured.

Active branches

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page

preferences:
123.79 ms | 405 KiB | 5 Q